SB2023050443 - Remote code execution in FortiOS and FortiProxy sslvpnd
Published: May 4, 2023
Security Bulletin ID
SB2023050443
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2023-22640)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote user to compromise vulnerable system.
The vulnerability exists due to a boundary error in sslvpnd. A remote authenticated user can send a specially crafted request to trigger an out-of-bounds write and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.